Hydraulic air-ejector.



.13. E. CLEVELAND.

HYDRAULIC AIR BJEGTOR. APPLIUATION FILED JUNE 7, 1911.v

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@Wi/(mmm Patented May 21, 191.2.A

` ERNEST E. c LEvELAND, 'or SPRINGFILD, MASSACHUSETTS.

HYDRAULIC AIBfEJEo'roR.

Specification of Letters Patent. A

Patent-@array 21, 1912.

Appncatin'led June 7, 191i; serial No. 631,754.

[o all 'whom t may concern.'

Be it'known that I, EnNEsrE. CLEVELAND, a citizen of the United States,residing at Springfield, in the county'of I-lampdenand State ofMassachusetts, have invented new and useful Improvements in Hy raulicAir- Ejectors, of which the following is a. speci? cation.

The present invention provides means for creating a positive circulationof air and utilizing liquid as the motive agent, the device beingprimarily intended for use in Avacuum cleaners, butwhich may be used to`advantage on Water cooling condensers or other devices requiring anejector or device of t-he twyer type. n

The invention consists of the novel features, details of constructionand combinatio'n of parts, which hereinafter will be more particularlyset forth, illustrated in the -accompanying drawing, andpointed out inthe appended claim.

Referring to the drawing, forming a part of the specification, Figure 1is a vertical rsection of an ejector embodyingthe invention. Fig. 2 is,a top plan View thereof. Fig. 3 is a horizontal sectionon the line mofFig. 1. Fig. 4:' is an elevation of the device having the Spud orcoupling end en the near side.

Corresponding and like parts are referred vto in the followingdescrlption, and indi- `cated in all. the views of the drawing, by

the same reference characters.

The body of the device is indicated at l and is hollow consisting. of acylindrical casing. f A Spud or couplingf end 2 is formed upon one sideof the body near an end thereof and is designed to havethe hosepipeorl'lexible tube connected thereto. 4A ring 3 'is ttedto the lowerend of the body vand forms a nozzle. A threaded opening 4t.

is formed in the upper end of the body and affords means for connectingthe same to a hydrant or other WaterliXture. A shell 5 1s arrangedWithin the body l and has connection with the .end thereof in which thethreaded opening 4 is formed. The shell terminates Within the body adistance from the discharge end of the ring or nozzle 3 andhas anopening 6 formed therein. The innerportion of the opening 6 is ofuniform diameter, Whereas theouter portion flares. A spreader 7 ofconical form has a threaded stem 8, which .is mounted in an opemngthereto.

4of resistance.

'are Within the scope hereto.

the lower end ofthe Ishell 5. The" taper of the spreader 7 corresponds.Wit-hthefiare of ,coupled vto a hydrant or other water fixture and theWater passing through the shell 5 and through the annular space 6 isspread outwardly and discharging through the nozzle or ringB creates asuction through thebody 1, spud 2'and hose pipe coupled the body throughthe Spud-or coupling end 2 travels through said -body in a direction"formed yin a cross piece 9 supported within l It is noted that the airentering parallel with, the flow of the water through the shell 5,thereby offering a small'amount. When the water and air es 'ape from thenozzle or ring 3 4the friction' is relieved. This is made ossiblebecause the device may be attached Io the spigot of a kitchen sink ,orto the spigot of a Wash basin "or bath tub. The Waterescaping from thedevice passes olf through the ,Waste attached to the sink or-to thetoilet fixture, thereby avoiding the necessity of piping the Water. toasewer drain. When used in connection with vacuum cleaning apparatus thedeviceprovides `a simple and effective means for creating. apositivecirculation to' carry olf the dust and other foreign matter. Itis'obvious that the construction provides anappliance which may be usedfor a Vva-l sho riety of purposes Where a 'positive circulation isdesired. i e From the foregoing descrlptlon, taken 1n connection w1ththe accompanying drawinlr.

ythe advantages of the construction and of:

described the principle of operation of the invention, together With thedevice Which I now. consider to be the embodiment thereof, I desire tohave it understood that the de vice shown is'merely illustrative, andthat such changes vmay -be made when desired as of the claim appended Inpractice the nozzle 3 may be formed` integral with the body or casing 1,or may and provided near its extreinity -with a cross be provided in anyvmanner as found most bar, a nozzle fitted to the delivery end oftheconvenient and advantageous.

Having thus described the invention what is claimed as new, is

A device of the character stated comprising concentric shells havingconnection'at one end,saidend having a threaded opening in line `withthe inner shell and the outer shell having a spud at the end connectingthe `two shells, the inner'shell having its opposite end formed with aared opening outer shell, and conical spreader having 1.5

screwthread connection with. the cross bar of the inner shell.

In testimony whereof I ailix niy signature in presence of two Witnesses.

ERNEST E.' CLEVELAND- Witnesses: E. A. ATKINSON, .H. S. TREWORGY.

